DISPERSIVE CLAY SOILS INTRODUCTION - USDA

4-WI-49 DISPERSIVE clay SOILS INTRODUCTION DISPERSIVE clay SOILS can be a problem for many practices or structures. In appearance, they are like normal clays that are stable and somewhat resistant to erosion, but in reality they can be highly erosive and subject to severe damage or failure. It is important to understand the nature of these SOILS and to be able to identify them so they can be treated or avoided. PROPERTIES OF DISPERSIVE CLAYS DISPERSIVE clays differ from ordinary, erosion resistant clays because they have a higher relative content of dissolved sodium in the pore water. Ordinary clays have a preponderance of calcium and magnesium dissolved in the pore water.

DISPERSIVE CLAY SOILS INTRODUCTION Dispersive clay soils can be a problem for many practices or structures. In appearance, they are like normal clays that are ... The crumb test is the simplest of the tests used for detecting dispersive clays. Crumb tests are often performed

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